Automobile mold fast positioning and clamping mechanical structure
By combining the insert rod assembly with the elastic metal buckle, along with the stepped structure and tapered guide design, the problem of poor flexibility and low precision in rapid positioning and clamping of existing automotive mold fixtures is solved, achieving efficient and safe mold positioning and clamping, suitable for rapid assembly and disassembly of automotive molds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN QIANGXU MOULD CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing automotive mold fixtures suffer from problems such as poor flexibility in rapid positioning and clamping, labor-intensive operation, low positioning accuracy, high equipment cost, and complex maintenance. They are particularly vulnerable to failure to operate during sudden power outages or air supply failures, which affects production continuity.
By employing a combination of insert rod assembly and elastic metal buckle, along with a stepped structure, elastic steel balls, and tapered guide design, the tooling die can be quickly positioned and clamped. Through spring linkage and self-locking mechanism, clamping stability and safety are ensured.
It enables one-click rapid clamping and release without the need for external energy, improving mold positioning accuracy and clamping efficiency, reducing equipment costs and maintenance complexity, and is suitable for the rapid assembly and disassembly needs of automotive molds.
Smart Images

Figure CN224294496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing technology, specifically to a mechanical structure for quick positioning and clamping of automobile molds. Background Technology
[0002] In recent years, with the automotive manufacturing industry moving towards flexibility and intelligence, the frequency of mold changes has increased significantly, placing higher demands on rapid positioning and clamping technologies. While some existing automated fixtures (such as pneumatic and electric fixtures) can improve mold change speed, they have the following limitations: pneumatic or electric fixtures require compressed air or power, and cannot operate in the event of a sudden power outage or air supply failure, affecting production continuity; complex drive systems and control modules increase equipment investment and maintenance costs, making them particularly unsuitable for small and medium-sized enterprises; traditional fixtures are sensitive to mold dimensional tolerances, requiring frequent adjustments to accommodate different mold specifications, resulting in poor flexibility; and under high-speed stamping or continuous vibration conditions, mechanical wear may lead to a decrease in clamping force, causing mold displacement risks. Furthermore, while existing mechanical clamping devices (such as wedges and eccentric wheels) have simple structures, they generally suffer from drawbacks such as laborious operation, long locking strokes, and low repeatability. Utility Model Content
[0003] To solve the above problems, this utility model provides the following technical solution: a quick positioning and clamping mechanical structure for automotive molds, including a mounting base, a placement groove on the mounting base, a cutting edge mold inserted into the placement groove, a retaining groove on the mounting base, a rod assembly inserted into the retaining groove, the other end of the rod assembly passing through an elastic metal buckle and inserted into one side of the cutting edge mold, the rod assembly including a fixing rod, the fixing rod sleeved on a sliding rod, a spring one provided between the fixing rod and the sliding rod, a groove on the fixing rod, a protrusion inserted into the groove, a spring two provided between the groove and the protrusion, an opening corresponding to the groove on the sliding rod, and a protective door movably mounted on the mounting base.
[0004] Preferably, the insertion rod assembly has a stepped structure.
[0005] Preferably, the fixing rod is provided with elastic steel balls.
[0006] Preferably, the inlet of the card slot is designed as a tapered guide structure.
[0007] Preferably, the outer surface of the sliding rod is provided with anti-slip texture.
[0008] Compared with the prior art, the beneficial effects of this utility model are:
[0009] The tooling assembly, through its combination with a flexible metal clip, enables rapid positioning and clamping of the cutting edge mold. The stepped rod structure (spring-driven linkage between the fixed and sliding rods, and locking with grooves and protrusions) and elastic steel balls enhance clamping stability and self-locking effect. The tapered slot entrance and anti-slip texture improve the ease of insertion and anti-slip performance, while the protective door further ensures safety. The overall structure simplifies the mold change process, significantly improving clamping efficiency while ensuring positioning accuracy, making it suitable for the rapid assembly and disassembly requirements of automotive molds. Attached Figure Description
[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0011] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the insert assembly structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the overall front view of the present utility model.
[0014] In the diagram: 1. Mounting base; 2. Placement slot; 3. Blade mold; 4. Insert rod assembly; 41. Fixing rod; 42. Sliding rod; 43. Spring 1; 44. Spring 2; 45. Protrusion; 46. Groove; 47. Opening; 48. Anti-slip texture; 5. Elastic metal buckle; 6. Elastic steel ball; 7. Protective door; 8. Slot. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0016] Depend on Figures 1 to 3 As provided, this utility model includes:
[0017] Mounting base 1 has a placement groove 2, into which a cutting edge mold 3 is inserted. Mounting base 1 has a slot 8, into which a rod assembly 4 is inserted. The other end of the rod assembly 4 passes through an elastic metal buckle 5 and is inserted into one side of the cutting edge mold 3. The rod assembly 4 includes a fixing rod 41, which is sleeved on a sliding rod 42. A spring 43 is provided between the fixing rod 41 and the sliding rod 42. A groove 46 is provided on the fixing rod 41, into which a protrusion 45 is inserted. A spring 44 is provided between the groove 46 and the protrusion 45. An opening 47 corresponding to the groove 46 is provided on the sliding rod 42. A protective door 7 is movably mounted on the mounting base 1.
[0018] The insertion rod assembly 4 has a stepped structure. The stepped structure automatically achieves initial fixation when the pin is inserted, and the thicker part at the rear end provides stronger locking force, improving the reliability of fixation.
[0019] The fixing rod 41 is equipped with elastic steel balls 6, which achieve mechanical locking and improve durability and fixing strength.
[0020] The inlet of slot 8 is designed with a tapered guide structure to improve assembly efficiency and reduce assembly difficulties caused by misalignment.
[0021] The outer surface of the sliding rod 42 is provided with anti-slip texture 48 to prevent slipping when holding the sliding rod 42 and to facilitate manual operation.
[0022] The working principle of this utility model:
[0023] Insert the cutting edge mold 3 into the mounting base 1 along the tapered guide structure of the placement groove 2, ensuring accurate positioning. The side of the cutting edge mold 3 is aligned with the slot 8 to facilitate the subsequent insertion of the insertion rod assembly 4. The operator holds the anti-slip textured part 48 of the sliding rod 42 and pushes it towards the cutting edge insert. The front end (thinner part) of the stepped structure of the insertion rod assembly 4 first enters the slot 8, and the tapered guide design makes it automatically aligned. Continue pushing the sliding rod 42, and the locking groove on the fixing rod 41 contacts the elastic steel ball 6 and locks it in place, forming a lock. Initially fixed, the protrusion 45 is pushed, and the protrusion 45 compresses the spring 44 in the groove 46. The sliding rod 42 slides into the elastic metal buckle 5 under the action of the spring 43. During the stamping process, the impact force on the die 3 is transmitted to the mounting base 1 through the insert rod assembly 4. The spring 43 absorbs the vibration and avoids structural damage caused by rigid impact. The cooperation between the elastic steel ball 6 and the locking groove prevents lateral displacement and ensures stamping accuracy. The sliding protective door 7 remains closed during stamping to prevent debris from flying or accidental contact by the operator.
[0024] Move the opening 47 on the sliding rod 42 to the position of the protrusion 45. The protrusion 45 will engage with the opening 47, and the insertion rod assembly 4 will retract and lock. Take out the cutting edge mold 3 and disengage it from the opening 47. Pull the sliding rod 42 to completely remove the insertion rod assembly 4 from the slot 8.
[0025] This utility model, through the innovative design of elastic metal buckles and stepped plug components, combined with a self-locking spring structure and conical guide groove, achieves "one-click" quick clamping and release without the need for external energy. At the same time, the anti-slip texture and protective door enhance operational safety and durability, meeting the needs of efficient changeover of automotive molds.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick positioning and clamping mechanical structure for automotive molds, comprising a mounting base (1), wherein the mounting base (1) has a placement groove (2), and a cutting edge mold (3) is inserted into the placement groove (2), characterized in that, The mounting base (1) is provided with a slot (8), and a rod assembly (4) is inserted into the slot (8). The other end of the rod assembly (4) passes through an elastic metal buckle (5) and is inserted into one side of the cutting edge mold (3). The rod assembly (4) includes a fixing rod (41), which is sleeved on a sliding rod (42). A spring (43) is provided between the fixing rod (41) and the sliding rod (42). A groove (46) is provided on the fixing rod (41), and a protrusion (45) is inserted into the groove (46). A spring (44) is provided between the groove (46) and the protrusion (45). An opening (47) corresponding to the groove (46) is provided on the sliding rod (42). A protective door (7) is movably installed on the mounting base (1).
2. The quick positioning and clamping mechanical structure for automotive molds according to claim 1, characterized in that: The insertion rod assembly (4) has a stepped structure.
3. The quick positioning and clamping mechanical structure for automotive molds according to claim 1, characterized in that: An elastic steel ball (6) is provided on the fixing rod (41).
4. The quick positioning and clamping mechanical structure for automotive molds according to claim 1, characterized in that: The inlet of the slot (8) is designed with a tapered guide structure.
5. The quick positioning and clamping mechanical structure for automotive molds according to claim 1, characterized in that: The outer surface of the sliding rod (42) is provided with anti-slip texture (48).